Fig. 1From: Clinical pitfalls in the diagnosis of segmental overgrowth syndromes: a child with the c.2740G > A mutation in PIK3CA geneBrain MRI: markedly thick corpus callosum and Chiari malformation type I (highlighted by the white arrow) represented in panel a; abnormalities of white matter (highlighted by the black arrow) and arachnoid left temporo-polar cyst (highlighted by the asterisk) represented in panel b; area of polymicrogyria in right parietal region (highlighted by the black triangles) represented in panel cBack to article page